A digestion device and digestion method for solid-state environmental samples

Abstract

The invention discloses a digestor and a digestion method for a solid environmental sample. The digestor for the solid environmental sample comprises a condensation tank, a digestion tank and a driving system used for driving the digestion tank to horizontally rotate and vertically turn over, wherein the driving system is connected with the digestion tank, and the digestion tank is suspended in the condensation tank by virtue of a support; a heater, a temperature sensor and a pressure sensor are arranged in the digestion tank, a pressure relief valve is arranged outside the digestion tank and is communicated with the interior of the digestion tank by virtue of a pipeline; and a spraying device used for cooling the digestion tank is arranged in the condensation tank. The digestor for the solid environmental sample has the characteristics of high efficiency, high automation degree, high stability, easiness for operation, easiness in maintenance and the like, an experimental period is shortened, and the cost is also reduced. The digestion method provided on the basis of the digestor has the advantages that defects of the traditional method are quickly and efficiently overcome, the analysis capability is greatly improved, the experiment cost is effectively reduced, and higher security is realized.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and chemical analysis, and in particular relates to an experimental device for digesting solid environmental samples and a method for digesting solid environmental samples based on the experimental device. Background technique [0002] When analyzing environmental samples, especially for some environmental samples that exist in solid form, such as polymers or macromolecular compounds, it is often impossible to directly detect them, and such solid environmental samples need to be digested before analysis . At present, the commonly used digestion methods mainly include dry digestion method, wet digestion method and microwave digestion method. Microwave digestion is a new pretreatment method in recent years, but its equipment structure is complicated and the cost is high. The wet digestion method has mature technology, strong reliability, the most widely used, and relatively mature...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of inhomogeneous reaction and incomplete digestion in the existing digestion technology, the present invention proposes a digestion device for solid environmental samples, which can realize uniform and complete digestion of solid environmental samples, and has simple operation, stable performance and good conditions Precise control and high degree of automation

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